<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    请选择班级：
    <select name="grade">
        <option value="one">1班</option>
        <option value="two" selected>2班</option>
    </select>
</body>
</html>